What is Dungeon Delve? - Neverwinter

Dungeon Delve is an event that happens four times a day in-game in which you receive bonus loot.

When level 60, the loot is in addition to AD and/or Seals, used to buy the most epic/end-game gear in the Seven Suns Coaster Market (Seal Vendors/Traders standing in every corner of the Golden-stone-marketplace).